motor fctn sensory reflex upper and lower Flashcards by Ellen Lee

S2
motor function
sensory
reflex

Motor function: plantar flexion, hip ext
Sensory: Posterior medial leg to mid thigh
Reflex: none (achilles)
(S2,3,4 keeps poo off the floor - pudendal nerve)

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S1
motor function
sensory
reflex

Motor: hip ext & abd; knee flex, hallux ext (DF), plantar flexion; eversion
Sensory : lateral foot, lateral shin, posterior calf & thigh
Reflex: achilles

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L5
motor function
sensory
reflex

Motor function: Hip ext & abd; knee flex; foot & hallux ext (dorsiflexion); inv and eve
Sensory: Antero-lateral shin to medial malleolus & medial foot and digits
Reflex: Medial hamstring

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Motor function: Hip add & abd; knee ext, foot inv and dorsiflexion
Sensory: lower middle thigh, anterior knee & medial shin
Reflex: Patellar

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Motor function: Hip flexion, hip adduction, knee extension
Sensory: Mid thigh, superolateral to antero medial knee
Reflex: None (patellar)

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inferior gluteal

L5,S1,S2
Motor function: Hip ext & external rot
Sensory: None
Reflex: None

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superior gluteal

Motor function: Hip abd and internal rotation
Sensory: None
Reflex: None

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superficial fibular

Motor function : Eversion via fibularis longus & brevis
Sensory: anterolateral leg
Dorsum (upper surface) of foot except space btn 1 & 2
reflex: none

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deep fibular

L4 - S2
Motor function: dorsiflexion, inversion,

extensor hallux longus & brevis
ext digiitorum longus & brevis
tibalis anterior

Sensory: webbing btn hallux & 2nd digit
Reflex: none

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tibial

L4 - S3
Motor fctn: Plantar flexion, hallux flexion, toe flexion
- politeus, tibilias posterior, flexor digitorum longus, flexor hallicus longus
Sensory: plantar surface of foot, heel, posterolateral calf
reflex: achilles
* tarsal tunnel
* muscles of posterior leg and majority of foot muscles

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sciatic

L4 - S3
Motor function: Knee flexion
Sensory: none
Reflex : Medial hamstring

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obturator

Motor function: Hip adduction
Sensory: Medial mid thigh
reflex: None

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femoral

L2 - 4
Motor function: Hip flexion (pectineus, iliacus, sartorius)
knee extensors -quads (RF, VL,VM,VI)
Sensory: Anteromedial thigh, medial knee; calf to malleolus
Reflex: Patellar

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Motor strength: Grip strength, finger abduction, thumb opposition
Sensory: Anterior medial forearm (inside of arm)
Reflex:none

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Motor function: Shoulder adduction; elbow ext, wrist flexion, grip strength, finger abduction, thumb opposition
Sensory: Posterior distal medial forearm, digits 4 & 5
Reflex: Triceps

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Motor function: Shoulder adduction, elbow extension, wrist flex & ext
Sensory: Centre palm, digits 2, 3, 4
Reflex: triceps

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Motor function: Shoulder abduction & adduction, elbow flex & ext; wrist flex & ext
Sensory: Lateral mid brachium, lateral forearm and digits 1 & 2
Reflex : Brachioradialis / biceps

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Motor function: Shoulder abduction, elbow flexion
Sensory: Strip over deltoid attachment running mid brachium
Reflex: Biceps /brachioradialis

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suprascapular

Motor function: External rotation, mild shoulder abduction
(via supraspinatus & infraspinatus)
Sensory: None testable (?ac joint)
Reflex: none

Long thoracic

Motor function: Scapular protraction and upward rotation
Sensory: none
Reflex: None

dorsal scapular

Motor function: Scapular retraction (rhomboids & lev scap)
Sensory none
Reflex None

musculocutaneous

C5 - 7
Motor function: anterior compartment
of arm (coracobrachialis, biceps, brachialis)
Elbow flexion
Sensory: Lateral forearm (lateral cutaneous nerve of forearm)
Reflexes: Biceps

ulnar

C8 - T1
Motor function: Finger abduction
Sensory: Medial hand, digits 4 & 5; distal medial antebrachium/wrist
Reflex: None

median

C6 - T1
Motor function: Wrist flexion, grip strength, thumb opposition
flexion & pronation of forearm
(pronator teres, CR, Pl, FDS, FPL, PQ)
Sensory: Anterior lateral wrist, thenar, digits 1 – 4 - tips posterior
Reflex: none

CTS - palm spared via palmar cutaneous branch

radial

C5 - T1 Motor function: elbow ext, wrist ext, finger ext, forearm supination Sensory: Anterior distal brachium; posterior lateral arm dorsal hand dorsum digits 1 - 3 Reflex: Triceps and brachioradialis injury - unopposed wrist flexion = wrist drop

axillary

C5,6 Motor function: Shoulder abduction; some external rotation deltoid & teres minor Sensory: Lateral shoulder to mid brachium Reflex: none compression in quadrangular space - esp overhead athletes (weakness deltoid & teres minor = shoulder abd & ER) erbs palsy - stretch of neck and shoulder - unable to abd or ER

ulnar nerve palsy - damage at elbow

flexion of wrist happens with abd - due to paralysis of FCU & medial 1/2 FDP - adduction & abd of fingers cannot occur - mvmt 4th & 5th fingers imparied - adduction of thumb impaired

ulnar nerve palsy - damage at wrist

- only intrsinc muscles of hand affected - no add or abd of fingers - mvmt 4th & 5th finger impaired - adduction of thumb impaired +ve froment sign - wasting of hypothenar eminence

Canadian c spine rules high risk factors

- > 65 yo - dangerous mechanism: fall > 92 cm; axial load to head; MVC high speed > 100 km/h / rollover/ejection; motorized recreational vehicle; bicycle crash - paresthesias in extremities

Canadian c spine rules low risk factors

- simple rear end - sitting in ED - ambulatory (at any time) - delayed onset neck pain - absence of midline c spine tenderness

Canadian c spine rule categories

1. High risk factors 2. low risk factors 3. Able to rotate neck 45 degrees L & R

WAD classification I

neck pain and stiffness or tenderness, no physical signs

WAD classification II

neck complaint and musculoskeletal signs - dec ROM - point tenderness - spasm / swelling - likely muscle and ligament tears

WAD classification III

neck complaint and neurological signs - dec / absent tendon reflexes - weakness - sensory deficits - pressure on nerves secondary to stretched neural tissues

WAD classificaiton IV

neck complaint and fracture/ dislocation

recommended treatment for WAD

1. stay active to optimize recovery 2. exercise is effective 3. simple analgesics for pain relief

no evidence or harm for treating WAD

no evidence: - traction - cervical pillows / cervical collars - magnetic necklaces - heat/ice/tens/us

muscles involved in shoulder flexion

anterior deltoid biceps coracobrachialis pec major

muscles involved in shoulder extension

posterior deltoid latissmus dorsi triceps teres major

muscles involved in shoulder abduction

middle deltoid supraspinatus

muscles involved in shoulder horizontal adduction

pec major coracobrachialis anterior deltoid

muscles involved in shoulder adduction

lat dorsi teres major pec major

muscles involved in horizontal abduction of shoulder

posterior deltoid teres major

muscles involved in internal rotation

subscapularis pec major latissimus dorsi

muscles involved in external rotation

infraspinatus teres minor